Lulzbot Mini

Print Settings

Slice in Cura.

Connection

Device /dev/ttyACM0

• Make sure it's world writable or user is in appropriate group (`uucp`)

Baud rate 250000

Nozzle Replacement

Unofficial Guide

Requires:

• 18mm open ended wrench
• Torque wrench w/ 7mm open ended wrench end

THE HOT END MUST BE HOT ENOUGH FOR THE PLASTIC TO BE SOFT

GCode

Start

G21                          ; metric values
G90                          ; absolute positioning
M82                          ; set extruder to absolute mode
M107                         ; start with the fan off
G92 E0                       ; set extruder position to 0
M140 S{print_bed_temperature}; get bed heating up
G28                          ; home all
M109 S150                    ; set to cleaning temp and wait
G1 Z150 
M109 S170                    ; heat up rest of way
G1 X45 Y174 F11520           ; move behind scraper
G1 Z0  F1200                 ; CRITICAL: set Z to height of top of scraper
G1 X45 Y174 Z-.5 F4000       ; wiping ; plunge into wipe pad
G1 X55 Y172 Z-.5 F4000       ; wiping
G1 X45 Y174 Z0 F4000         ; wiping
G1 X55 Y172 F4000            ; wiping
G1 X45 Y174 F4000            ; wiping
G1 X55 Y172 F4000            ; wiping
G1 X45 Y174 F4000            ; wiping
G1 X55 Y172 F4000            ; wiping
G1 X60 Y174 F4000            ; wiping
G1 X80 Y172 F4000            ; wiping
G1 X60 Y174 F4000            ; wiping
G1 X80 Y172 F4000            ; wiping
G1 X60 Y174 F4000            ; wiping
G1 X90 Y172 F4000            ; wiping
G1 X80 Y174 F4000            ; wiping
G1 X100 Y172 F4000           ; wiping
G1 X80 Y174 F4000            ; wiping
G1 X100 Y172 F4000           ; wiping
G1 X80 Y174 F4000            ; wiping
G1 X100 Y172 F4000           ; wiping
G1 X110 Y174 F4000           ; wiping
G1 X100 Y172 F4000           ; wiping
G1 X110 Y174 F4000           ; wiping
G1 X100 Y172 F4000           ; wiping
G1 X110 Y174 F4000           ; wiping
G1 X115 Y172 Z-0.5 F1000     ; wipe slower and bury noz in cleanish area
G1 Z10                       ; raise z
G28 X0 Y0                    ; home x and y
M109 S170                    ; set to probing temp
M204 S300                    ; set accel for probing
G29                          ; Probe
M204 S2000                   ; set accel back to normal
G1 X5 Y15 Z10 F5000          ; get out the way
M400                         ; clear buffer
G4 S1                        ; pause
M109 S{print_temperature}    ; set extruder temp and wait
G4 S25                       ; wait for bed to temp up
G1 E5 F75                 ; extrude filament back into nozzle
M140 S{print_bed_temperature}; get bed temping up during first layer

End

M400
M104 S0                     ; hot end off
M140 S0                     ; heated bed heater off (if you have it)
M107                        ; fans off
G1 X5 Y5 Z158 E-1 F10000    ; move to cooling positioning
M190 S50                    ; set bed to cool off
M140 S0
G1 X145 F1000               ; move to cooling positioning
G1 Y175 F1000               ; move to cooling positioning
M84                         ; steppers off
G90                         ; absolute positioning